Open hook blade piercing cannula

Abstract

The utility model discloses an open type hook needle puncture sleeve, including instrument mechanism and protection mechanism, instrument mechanism includes the sleeve and vertical and slidingly penetrates the open type hook needle of sleeve, protection mechanism, protection mechanism includes the handle connected with the open type hook needle top, installs the clamping block of one side of handle, can dismantle the extension of sleeve connection in the clamping block outside, with the sealing membrane connected with the extension bottom, the paper sheet that is combined in open type hook needle bottom and is connected with sealing membrane, sealing membrane inner wall and sleeve outer wall are combined, in the utility model, sleeve and open type hook needle connected with sleeve are placed in the suitable position, then as the sealing membrane of protection effect has not torn down, and sealing membrane cooperates with paper sheet, and the side surface and bottom of sleeve are completely blocked, effectively prevent the contact of dust layer or contaminant to open type hook needle movable end, improve the security when open type hook needle uses.

Description

TECHNICAL FIELD

[0001] The utility model relates to puncture cannula technical field, concretely is a kind of open type hooking knife puncture cannula. BACKGROUND

[0002] In the minimally invasive medical operation of human body, once the lesion is found in the human body, it needs to be operated or removed. During the operation, the first thing that needs to be applied is a puncture device, which is a surgical instrument for piercing the abdominal wall and providing a channel for other surgical instruments to enter the body cavity, and belongs to a kind of minimally invasive surgical instrument. The puncture device usually includes a sleeve assembly as an access channel for other surgical instruments and a puncture rod penetrating the sleeve assembly.

[0003] The puncture cannula currently used has one-time use and repeated use. Both types of instruments need to be opened in advance and placed in a suitable position for use by the doctor before the operation begins, but this means that the instrument loses the protection against dust and contamination, resulting in an increased risk of infection for the patient when using the instrument. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0005] To this end, the utility model employs the following technical scheme:

[0006] An open type hooking knife puncture cannula includes an instrument mechanism and a protection mechanism. The instrument mechanism includes a sleeve and an open type hooking knife vertically and slidingly penetrating the sleeve. The protection mechanism includes a handle connected to the top end of the open type hooking knife, a clamping block mounted on one side of the handle, an extension part detachably sleeved on the outside of the clamping block, a sealing film connected to the bottom end of the extension part, and a paper sheet attached to the bottom end of the open type hooking knife and connected to the sealing film. The inner wall of the sealing film is attached to the outer wall of the sleeve, and the end of the sealing film is connected to the sleeve.

[0007] By adopting the above technical scheme, the sleeve and the open type hooking knife connected to the sleeve are placed in a suitable position, and then the sealing film as a protective effect is not torn off. The sealing film cooperates with the paper sheet to completely block the side and bottom end of the sleeve, effectively preventing the open type hooking knife from being contacted by dust or contaminants, and improving the safety of the open type hooking knife during use.

[0008] In a preferred example, the open type hooking knife and the sleeve are vertically coaxial, and the diameter of the open type hooking knife is equal to one-third of the inner diameter of the sleeve.

[0009] In a preferred example, the sleeve is provided with a socket vertically penetrated by the extension part, and the socket is located at the bottom of the clamping block.

[0010] In a preferred embodiment, the present invention can be further configured such that the extension portion is integrally formed with the sealing film, and both the extension portion and the sealing film are set to light blue.

[0011] In a preferred embodiment, the present invention can be further configured such that: the sealing film is U-shaped, the paper is located at the bottom of the sealing film, the thickness of the paper is equal to the thickness of the sealing film, and the bottoms of the two are on the same horizontal plane.

[0012] In a preferred embodiment, the present invention can be further configured such that the card block and the handle are integrally formed, and both are movably fitted to the top of the sleeve.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0014] 1. In this utility model, the tube sleeve and the open-type hook knife connected to the tube sleeve are placed in a suitable position, and then the sealing film, which serves as protection, is not torn off. The sealing film, together with the paper, completely seals the side and bottom of the tube sleeve, effectively preventing dust or contaminants from contacting the moving end of the open-type hook knife, and improving the safety of the open-type hook knife during use.

[0015] 2. In this utility model, the tube sleeve is aligned with and close to the lesion site, and then an open-type hook knife is inserted along the tube sleeve. Medical staff use the open-type hook knife to perform surgical operations. The structure is simple and easy to use. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the mechanism of the instrument of this utility model;

[0018] Figure 3 This is a schematic diagram of the protection mechanism of this utility model.

[0019] Figure label:

[0020] 100. Instrument mechanism; 110. Tube sleeve; 120. Open-type hook knife;

[0021] 200. Protective mechanism; 210. Handle; 220. Locking block; 230. Extension; 240. Sealing film; 250. Paper piece;

[0022] 300, end. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0025] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an open-type hook puncture cannula.

[0026] Example 1:

[0027] Combination Figures 1-3 As shown, the present invention provides an open-type hook knife puncture cannula, including an instrument mechanism 100 and a protective mechanism 200. The instrument mechanism 100 includes a sleeve 110 and an open-type hook knife 120 that is vertical and slides through the sleeve 110.

[0028] The protective mechanism 200 includes a handle 210 connected to the top of the open hook 120, a locking block 220 installed on one side of the handle 210, an extension 230 detachably sleeved on the outside of the locking block 220, a sealing film 240 connected to the bottom end of the extension 230, and a piece of paper 250 attached to the bottom end of the open hook 120 and connected to the sealing film 240. The inner wall of the sealing film 240 is attached to the outer wall of the sleeve 110, and the end 300 of the sealing film 240 is connected to the sleeve 110.

[0029] Furthermore, the open-type hook 120 is vertically coaxial with the tube sleeve 110, and the diameter of the open-type hook 120 is equal to one-third of the inner diameter of the tube sleeve 110. With this size design, medical staff can flexibly manipulate the open-type hook 120 within a certain range, improving the flexibility of the operation.

[0030] Furthermore, the sleeve 110 is provided with an insertion port suitable for the extension 230 to pass through vertically. The insertion port is located at the bottom of the locking block 220. The insertion port facilitates the extension 230 to pass through the sleeve 110 and be fixed to the locking block 220.

[0031] Furthermore, the locking block 220 and the handle 210 are integrally formed, and both are movably fitted to the top of the sleeve 110. This structural design can prevent the open-type hook knife 120 from falling completely into the sleeve 110.

[0032] Example 2:

[0033] Combination Figure 1 and Figure 3As shown, based on Embodiment 1, the extension 230 and the sealing film 240 are integrally formed. Both the extension 230 and the sealing film 240 are set in light blue. The color setting makes it easy for medical staff to recognize the sealing film 240 and the extension 230, making it convenient for medical staff to completely tear them off and avoid the sealing film 240 and the extension 230 affecting the use of the open-type hook knife 120.

[0034] Example 3:

[0035] Combination Figure 1 and Figure 3 As shown, in the above embodiment, the sealing film 240 is configured as a U-shape, the paper piece 250 is located at the bottom of the sealing film 240, the thickness of the paper piece 250 is equal to the thickness of the sealing film 240, and the bottoms of the two are located on the same horizontal plane. This size design ensures that the sealing film 240 can completely seal the exposed position of the sleeve 110, thus ensuring its sealing effect.

[0036] The working principle and usage process of this utility model are as follows: Before using this device, the tube sleeve 110 and the open-type hook knife 120 connected to the tube sleeve 110 are placed in a suitable position. Then, the sealing film 240, which serves as protection, is not removed. The sealing film 240, together with the paper piece 250, completely seals the side and bottom of the tube sleeve 110, effectively preventing dust or contaminants from contacting the moving end of the open-type hook knife 120, thus improving the safety of the open-type hook knife 120 during use. Then, when this device is put into actual use, the tube sleeve 110 is aligned with and brought close to the lesion site. Then, the open-type hook knife 120 is inserted along the tube sleeve 110, and medical staff use the open-type hook knife 120 to perform surgical operations.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An open-type hook-knife puncture cannula, characterized in that, include: The instrument mechanism (100) includes a sleeve (110) and an open hook (120) that is vertical and slides through the sleeve (110); The protective mechanism (200) includes a handle (210) connected to the top of the open hook (120), a locking block (220) installed on one side of the handle (210), an extension (230) detachably sleeved on the outside of the locking block (220), a sealing film (240) connected to the bottom end of the extension (230), and a piece of paper (250) attached to the bottom end of the open hook (120) and connected to the sealing film (240). The inner wall of the sealing film (240) is attached to the outer wall of the sleeve (110), and the end (300) of the sealing film (240) is connected to the sleeve (110).

2. The open-type hook-knife puncture cannula according to claim 1, characterized in that, The open-type hook (120) is vertically coaxial with the sleeve (110), and the diameter of the open-type hook (120) is equal to one-third of the inner diameter of the sleeve (110).

3. The open-type hook-knife puncture cannula according to claim 1, characterized in that, The sleeve (110) has an opening suitable for the extension (230) to penetrate vertically, and the opening is located at the bottom of the locking block (220).

4. The open-type hook-knife puncture cannula according to claim 1, characterized in that, The extension (230) and the sealing film (240) are integrally formed, and both the extension (230) and the sealing film (240) are light blue.

5. The open-type hook-knife puncture cannula according to claim 1, characterized in that, The sealing film (240) is U-shaped, and the paper piece (250) is located at the bottom of the sealing film (240). The thickness of the paper piece (250) is equal to the thickness of the sealing film (240), and the bottoms of the two are on the same horizontal plane.

6. The open-type hook-knife puncture cannula according to claim 1, characterized in that, The card block (220) and the handle (210) are integrally formed, and both are movably attached to the top of the sleeve (110).

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